Kata Thermometer - An alcohol thermometer used to measure air speed or atmospheric conditions by means of cooling effect.

Kelvin Scale - Thermometer scale on which unit of measurement equals the Celsius degree and according to which absolute zero is 0 degree, the equivalent of -273.16 ⁰C. Water freezes at 273.16 ⁰K and boils at 373.16⁰K.

Kilopascal (kPa) - See PASCAL.

Kilowatt - 1000 watts of power or 1.34 horse power.

KWH - Kilowatt hours - Electrical term - 1 Kwh equals the use of 1000 watts for one hour.

Kilovolt Ampere (kVA) - Unit of electrical flow equal to volts multiplied by amperes and divided by one thousand.